F6904
F Series Flanged Bearings
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Part No.
Part No.
F6904
Basic Information
Bearing type
Ball
System of measurement
Metric
Ball bearing type
Flanged
Construction
Single Row
Tolerance class
ABEC-1
Seal type
Open
For load direction
Radial
Main Dimensions
Bore diameter
20 mm
Bore diameter tolerance
-0.010mm to 0
Outside diameter
37 mm
Outside diameter tolerance
-0.011 mm to 0
Width
9 mm
Width tolerance
-0.12 mm to 0
Inner Ring Dimensions
Inner ring type
Standard
Outer Ring Dimensions
Flange outer diameter
40 mm
Flange thickness
2 mm
Ball & Washer Dimensions
Ball diameter
4.762 mm
Ball quantity
14
Performance
Temperature range
-30° to 110°C
Radial dynamic load rating
1434 lbf
Radial static load rating
827 lbf
Limiting speed
19 X 1000 rpm
Lubrication
Required
Radial internal clearance
C0
Radial internal clearance
0.002mm to 0.013mm
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Stainless Steel
Shield material
300 Series Stainless Steel
Environment & Compliance
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 3.23
/ each
In Stock
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F6904 Bearing Product Overview & Core Advantages
The F6904 is a metric single row flanged ball bearing engineered for compact radial load applications requiring precise positioning. Its integral flange design facilitates simplified mounting and accurate axial location within assemblies, eliminating the need for complex housing shoulders. Manufactured to ABEC-1 precision tolerances, this bearing delivers reliable performance and consistent operation. The open seal type allows for versatile lubrication options, making it suitable for a wide range of industrial environments.
F6904 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Significance |
|---|---|
| F | Denotes the Flanged outer ring design. |
| 6904 | Standard bearing series designation indicating the core dimensions (20mm bore, 37mm OD). |
| (No Seal Suffix) | Indicates an Open bearing, requiring external lubrication for optimal performance. |
F6904 Bearing Structural Features & Performance Benefits
- Flanged Construction: The integrated flange provides a positive locating surface, enhancing mounting stability and simplifying assembly in applications where housing shoulders are impractical.
- High-Grade Materials: Constructed from Chrome Steel rings and balls with a Stainless Steel cage, ensuring high durability, corrosion resistance, and long service life.
- Precision Performance: Manufactured to ABEC-1 tolerance standards with a C0 radial internal clearance (0.002mm to 0.013mm), guaranteeing smooth, low-vibration, and precise rotation.
- Optimized Load Capacity: Engineered with 14 precision balls of 4.762mm diameter, providing a substantial radial dynamic load rating of 1434 lbf and a static load rating of 827 lbf for its compact cross-section.
F6904 Bearing Typical Application Areas
This flanged ball bearing is ideally suited for applications demanding compact design and precise radial support, including:
- Small Electric Motors and Gearboxes
- Office Automation Equipment (Printers, Scanners)
- Medical Devices and Instrumentation
- Robotic Arms and Precision Guides
- Cooling Fans and Small Pumps
